摘要
介绍了芳纶的化学结构、紫外老化特性和机理,综述了抗紫外多功能涂层改性芳纶的研究进展.芳纶的表面涂层改性根据功能的不同,主要可分为抗紫外涂层、导电涂层、抗菌涂层、阻燃涂层、疏水涂层及多功能涂层改性.涂层剂的种类可分为无机纳米涂层、有机高分子涂层、有机-无机纳米材料复合涂层.针对芳纶不同的应用场景及需求,总结了功能化涂层改性方法的优势及存在的问题,指出芳纶抗紫外涂层应兼具多功能化、高耐久性、高效节能和环境友好等特点.
Abstract
The chemical structure and ultraviolet(UV)aging characteristics and mechanism of aramid fiber were introduced.And the research progress of anti-UV multifunctional coating modified aramid fiber was reviewed.The surface coating modified of aramid fibers can be mainly divided into anti-UV coating,conductive coating,antibacterial coating,flame retardant coating,hy-drophobic coating and multifunctional coating modifications according to their different functions.The varieties of coating agents include inorganic nanocoating,organic polymer coating and organic-inorganic nano-composite coating.Based on the different ap-plication scenarios and requirements of aramid fiber,the advantages and existing problems of the functional coating modification methods were summarized.It was pointed out that the research trend of anti-UV coatings for aramid fibers should be focused on the characteristics of multifunctionality,high durability,high efficiency,energy saving and environmental friendliness.
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